Carbureter



F. E. KAPP.

CARBURETER.

APPLICATION FILED 'MAY 1, 1915.

Patentodlnnc 20, 19H).

, UNITED sTArns PATENT. OFFICE.

FRANK-E. KAPP. '1 rrnmn'rn PENNSYLVANIA of Phs waaiaaave invented-"cetta n iew" engaged Betweeg the ygt e,go thebotand ,usef,ul improvements Qarliureters; tom of the body 5. ya and I do by.iiedl'aregth -i emngi' a ear st; t a qerfia st aha a iul-l,- ;cle ar,-.;andgexact description of; the tp cgdpera thegal v go n-a p invention; su'ch as will enable qtl e rs;slnlled i ,;A. n1 ng;?2 is secnre 3 L :e ,BPPPFIPQRUOD in the art o tapas t iia k r-rattles atbar ahadaifimademha tead a and use the same. .13 e 12h;,3l3l2fifllfitclgggW131i rzpadfgel iltlpgg gfiend Is This inventionrelates to'ca rbu'reters, and provided withan' ntegral radially directed ii s--p mt-ry-o ject QPliid3fi de ice 27*. cpnstltut ngaagmdeeand support for of this chara'cte i embodying a novel and et mtherrelatively ad ustable arm 28, havingan ficient connectioillb etween the air and liquid integral sleeve 29 slidably receiving the guide It seat 2 1s sefuel controlling ilves, affording maximum arm 27. The sleeve 29 and arm 28 are adaptadj ustability and permitting a wide range in the proportion of air-and gas.

With these and other objects in view, the

invention consists in the novel construction, arrangement and formation of parts as will be hereinafter specifically described, claimed and illustrated in the accompanying drawing i'n which:

' Figure .1 represents a longitudinal sectional view through the improved carbureter, and Fig. 2 represents a fragmental detail view in perspective, of the adjustable connection between the air and liquid fuel controlling valves.

. Referring to the drawing in detail, wherein similar reference numerals designate corresponding parts throughout the several views, the numeral 5 indicates generally the body of the carbureter which includes an air intake port 6, outlet port 7 and a carbureting chamber 8. An air controlling valve 9 is arranged in the air inlet port 6 and a throttle valve 10 is arranged in the outlet port 7 A float chamber 11 is arranged laterally of'the body of the carbureter and contains a float 12 which is connected with a valve 13 for controlling the flow of liquid fuel through the fuel pipe 14. A spray nozzle 15 and pipe 16 communicate the lower portion of the float chamber 11 with the carbureting chamber 8.

A needle valve 17 is provided for controlling the flow of liquid fuel through the nozzle. 15 and the stem 18 of said valve is slidably mounted in an externally screwthreaded plug I 19 secured in the body of the carburetor directly above the open end of the spray nozzle 15. A horizontally disposed air intake valve 20 is provided with oppositely directed stems 21 and 22 slidably mounted in the plug ed to be secured in adjusted position longitue dinally of the guide arm 27 by a set screw 30, and the upper free endof the adjustable arm 28 i pivotally secured by a pin 31 between/ he parallel ears 32 of a sleeve 33, slidably mounted upon the connecting .rod 34 and adapted to be secured in adjusted position by a set screw 35 or equivalent means.

' One end of the connecting rod 34 is slidably.

received within an aperture 36 formed adjacent the upper terminal of the enlarged end 37 of the stem 18 of the fuel controlling valve 17. The opposite extremity of the connecting rod 34 is movable longitudinally through a transverse aperture 38 formed in the enlarged upper end 39'of the upper valve stem 21 of the air controlling valve 20. The transverse opening 38 communicates with a longitudinal recess 40 formed in the enlarged end 39 of the valve stem 21 and the upper extremity of the side wall of said recess is internally screwthreaded to fit a set screw 42having a head 43,. whereby the screw may be conveniently ,adjusted. The adjacent extremity of the connecting rod 34 is normally retained in engagement with the rounded end of the set screw 42 by the tension of'a spring 44 positioned within the recess 40 and engaged with the under surface of the connecting rod 3 In operation, the outlet port 7 of the carburetor is connected with the intake manifold or pipe of the internal combustion engine (not shown) and during the suction stroke of the piston the suction created within the carburetor body automatically opens the valve-20, and the opening movement of said valve is transmitted to the needle valve 17 through the stem 21, connecting rod 34 and valve stem 18, the connecting rod 34 aiiiani li' si p 'the sleeves 33 and 29 longitudinally of the connecting rod 34 and relatively stationary guide arm 27, respectively, the relative move-' 'ment of the valves 17 and 20may be, varied to produce the desired proportion of air and liquid'fuel. By adjusting the screw 42 the normal position of the needle valve 17 relative to the mouth of the spray nozzle 15 may be varied, as desired.

What I claim is:

In a carbureter, a body, air and liquid fuel controlling valves arranged in said body, valve stems carried by said valves having apertured ends, a rod pivotally mounted in the apertures of said stems, an armadjustably secured to said body, a sleeve adjustable longitudinally of said rod, means for securing said sleeve in adjusted position on said rod, a second arm adjustablelongitudinally of the first-mentioned arm, a pivotal'con'nectio'n between the second arm and linpresence of two witnesses.

v FRANK E. KAPP. Witnesses:

GUY Common, A. GIBB.

copies 0! patent be obtained for five cents each, by nddreninz the commissionel ot intents.

Washington, D. G." 

